the text you used says fully :
6 An elder must be blameless, faithful to his wife, a man whose children believe and are not open to the charge of being wild and disobedient.
7 Since an overseer manages God’s household,
he must be blameless—
not overbearing, not quick-tempered, not given to drunkenness, not violent, not pursuing dishonest gain.
8 Rather, he must be hospitable, one who loves what is good, who is self-controlled, upright, holy and disciplined.
9 He must hold firmly to the trustworthy message as it has been taught, so that
he can encourage others by sound doctrine
and refute those who oppose it.
many want to refute but can't encourage